Brake mechanism for wagons.



E. G. DOLAND.

- BRAKE MECHANISM FOR WAGONS.

Patented Nov. 17, 1908 APPLICATION FILED JUNE 24. 1908.

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E. G. DOLAND. BRAKE MECHANISM FOR WAGONS, APPLICATION FILED JUNE 24,1908. 903 ,847, Patented Nov. 17, 1908. 2 SHEETS-SHEET 2.

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EBEN G. DOLAND, OF STARKSBORO, VERMONT.

BRAKE lVEECI-IANISM FOR WAGONS.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed. June 24, 1908. Serial No. 440,095.

To all whom it may concern:

Be it known that I, EBEN G. DOLAND, a citizen of the United States, anda resident of Starksboro, in the county of Addison and State of Vermont,have invented a new and Improved Brake Mechanism for Wagons, of whichthe following is a full, clear, and exact description.

My invention relates to wagons, and it has for its object to provide avery efieetive brake which may be operated by any back pressure on thefront axle which is greater than that on the rear axle. This Iaccomplish by the following construction. The front bolster is dividedand there is a slot longitudinal of the wagon in the upper part of thebolster, in which the coupling pin is free to travel, the coupling pinfitting closely an orifice in the lower half of the bolster, there beingsecured to the lower half of the bolster, an arm which is disposed underthe main reach, which is secured to the upper part of the bolster, themain reach having a sleeve disposed therebeneath, through which the armon the lower half of the bolster extends. The upper half of the frontbolster is kept parallel with the rear bolster by the main reach. Thereach which passes between the cross hounds is also slotted at its frontend and in this slot extends the coupling pin. The coupling pin alsopasses through the front axle and the brake reach, but it fits thelatter snugly with no room for play and as this brake reach is pivotedto pivoted arms, which are connected with the brake bar by links, itwill be seen that the longitudinal movement of the brake reachrelatively to the other reaches, will operate the brakes, the degree ofthe movement of the brakes being regulated by the adjustment of thelinks to the pivoted arms. Means are provided at the front and the rearof the wagon for preventing the operation of the brake mechanism.

In this specification, I will describe the preferred form of myinvention, but it will be understood that I do not limit myself thereto,as I consider myself to be entitled to all forms and embodiments of theinven tion which may be held to fall within the scope of the appendedclaims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures, in which Figure l is a plan viewof a wagon frame to which my brake mechanism has been applied; Fig. 2 isa sectional view on the line 2-2 of Fig. 1; Fig. 3 is an inverted planview of the rear axle of the wagon, the brake bar, the brake shoes'andmy mechanism for operating the brake bar; Fig. 4 is a sectional view onthe line t4 of Fig. 2; Fig. 5 is a sectional view on the line 55 of Fig.2; and gig. 6 is a sectional view on the line 66 of By referring to thedrawings, it will be seen that a main reach 1 passes through a rearbolster 2 and is secured thereto and that a second reach 3passes betweenthe rear bolster 2 and an axle 4. These reaches 1 and 3 are secured tothe rear bolster 2, as stated. The front bolster is divided, and to theupper half 5 of the front bolster is se cured the main reach 1, therebeing a slot longitudinal of the reach in the said upper half 5 of thefront bolster. The lower half 6 of the front bolster has an opening 7therein, through which a coupling pin 8 is disposed, this coupling pin 8also passing through a slot 9 in the upper half of the front bolster.The lower half of the front bolster has an arm 10 secured thereto, thisarm 10 being disposed under the main reach 1 and passing through asleeve 11 which is secured to the lower surface of the said mainreach 1. By this means the arm 10 secured to the lower half of the frontbolster and the main reach 1 secured to the upper half of the frontbolster, will always be in alinement, though they may movelongitudinally, relatively to each other. cured to the arm 10 and isdisposed obliquely through a slot 13 in the main reach 1, this guide 12passing over the top of the front bolster with an orifice in alinementwith the orifice 7 in the lower half of the front bolster, to permit thecoupling pin 8 to pass therethrough. The front end of the reach 3 has aslot 14 therein, this slot lt being in alinement with the slot 9 in theupper half of the front bolster, to which the main reach 1 is secured.Between the front end of the reach 3 and the front end of a brake reach15 is disposed a bolster member 16 and a wear A guide 12 is se-.

plate 17, the wear plate 17 being disposed between the bolster member 16and the front end of the reach 3. Below the front end of the brake reach15 is disposed an axle 18. The coupling pin 8 therefore, passes throughthe guide 12, the slot. 9 in the upper half of the front bolster, towhich the main reach 1 is secured, the closely fitting orifice 7 in thelower half of the front bolster, the slot 14 in the reach 3, a closelyfitting orifice in the bol ster member 16, the closely fitting orificein the brake reach 15, and a closely fitting ori-' fice in the axle 3.It will, therefore, be seen that while the coupling pin 8 will hold theseveral parts together, the reaches 1 and 3 are adapted to moveforwardly or rearwardly relatively to the other members, and that asthese reaches 1 and 3 are secured to the rear bolster 2 and to the rearaxle 1, the rear bolster and axle are adapted to move to and from thefront axle 18 and the bolster disposed thereover. To a cross-bar 40 arepivoted arms 19 to which is hung, under the brake reach 15, a brake bar20, there being brake shoes 21 secured to the brake bar 20, thecross-bar 40 being secured to the frame. There are also pivoted to thereach 3, arms 22, these arms 22 having slots 23 near their lowerterminals and having a plurality of orifices 24 between the slots 23 andtheir upper terminals.

Secured to the lower surface of the brake reach 15 is a plate 25,through which at its rear end passes a bar 26, this bar 26 also passingthrough the slots 23 in the arms 22. Pivoted to the arms 22, above theplate 25, are links 27, the other terminals of these links 27 beingpivoted to the brake bar 20. The links 27 may be pivoted to the arms 22at any of the orifices 24, so that it is possible to adjust the brakebar relatively to the brake reach 15. The rear end of the brake reach 15passes through an opening in a member 28, the said member 28 serving tosupport the rear end of the brake reach. Below the axle is disposed abar 29, which is adapted to pass through the sides of the member 28 andthrough an opening in the brake reach 15, so that when this bar 29,which is adapted to slide through the opening in the brake reach 15, isthrown therethrough, it will hold the brake reach 15 se cured to therear axle 1, which will prevent the movement of the brake reach 15relatively to the reaches 1 and 3. The bar 29 has its outer terminalbent so that it will engage a lever 30 which is pivoted to the rearbolster 2. To the upper part 5, of the front bolster is secured aU-shaped member 31, and to the lower half of the front bolster ispivoted an arm 32 having notches 33 there in, these notches 33 beingadapted to engage the front portion of the U-shaped member 31. A plate34: is disposed under the arm 32 to serve as a support. To this arm 32is secured a line 35, and it is preferable to connect the said line 35with the arm 32 by means of a spring 36. This line 35 may have rings 37at its free terminal, and the line 35 may be so disposed that when adriver is riding on the top of a very high load, he will be able, bymeans of the said line, to prevent the operation of the brakes at anytime, for when the line 35 is drawn upwardly the notches 33 on the arm32 will engage the front end of the U-shaped member 31, which willprevent the relative movement of the reach 1 with reference to the frontbolster and to the brake reach 15. It

' will, therefore, be seen that when the brakes are not applied and thenotches 33 in the arm 32 engage thefront end of the U-shaped member 31,the brakes will be thrown out of operation. It will be understood thatantifriction devices 33 may be inserted in the slots 9 and 1 1, tosecure an easy movement of the reaches 1 and 3 relatively to the brakereach 15. It will also be understood that rollers or other anti-frictiondevices 39 may be secured between the horizontal members of the frontbolster to secure an easy movement of the brake mechanism.

In the operation of my invention, when a team hitched to a wagon ispulling on the load, the slots in the reaches 1 and 3 will be sodisposed with reference to the coupling pin 8, that the front ends ofthe slots will bear on the coupling pin to secure the desired result,but that when the team is held back, the reaches 1 and 3 will moveforwardly carrying with them the rear bolster 1 2 and the rear axle 4,which will cause the arms 22 to be disposed rearwardly relatively to thereach 3, as the brake reach 15 will not move with the reaches 1 and 3.This movement of the arms 22 will, by means of the links 27, draw thebrake arm 20 toward the tread of the rear wheels, which will cause thebrake shoes 21 to bear on the tread of the rear wheels and will have thedesired braking effect. \Vhen the driver does not wish to have thebrakes applied at any time dur- 1 ing his journey, he may by theoperation of the lever 30, cause the bar 29 to pass through the member28 and through the brake reach 15, which will secure the brake reach 15to the axle 4 by which means the operation of the brakes will beprevented. Should the brake mechanism be in operative position andduring the journey the driver desire to prevent the operation of thebrakes, he may by pulling on the line 35, connect the arm 32 with itsnotches 33 with the U-shaped member 31 thus securing the upper and lowerhalf of the front bolster together which will prevent the movement ofthe main reach 1 relatively to the front axle and to the brake reach 15.

Having thus described my claim as new and Patent:

1. In a wagon brake, an axle, a bolster, main and brake reaches, onereach being adapted to move longitudinally relatively to the other, theaxle being adapted to control the relative positions of the reaches, abrake shoe, means connected with the reaches and with the brake shoewhich are adapted to operate the latter and means to prevent therelative movement of the reaches.

2. In a wagon brake, an axle, a bolster, main and brake reaches, onereach being adapted to move relatively to the other, the axle beingadapted to control the relative positions of the reaches, a brake barhung to swing on one reach, mechanism connected with the other reachwhich is adapted to operate the brake bar and means to prevent therelative movement of the reaches.

3. In a wagon brake, main and brake reaches which are adapted to movelongitudinally relatively to each other, a brake bar, arms pivoted toone reach, the arms having pivoted connections with the brake bar andwith the other reach, and a second set of arms pivoted to the said reachto which is secured the brake bar.

4. In a wagon brake, main and brake reaches which are adapted to moverelatively to each other, a brake bar, two arms pivoted to one reach,and a link connecting the two arms, one arm being secured to the otherreach and the brake bar being secured to the other arm.

5. In a wagon brake, main and brake reaches which are adapted to moverelatively to each other, a brake bar, two arms pivoted to one reach, alink connecting the two arms, one arm being secured to the other reach,

invention, I desire to secure by Letters the brake bar being secured tothe other arm,

and means to prevent the relative movement of the reaches.

6. In a wagon brake, a coupling pin, a divided bolster, one half of thebolster having a slot therein, a reach secured to the upper half of thebolster, means which will permit a forward and backward movement of onehalf of the bolster with reference to its other half but which willprevent any rotary movement of one half relatively to the other, and abrake reach through which the coupling pin passes, the brake reach beingadapted to operate means to apply the brakes.

7. In a wagon brake, a coupling pin, a

divided bolster, one half of the bolster having a slot therein, a reachsecured to the upper half of the bolster, means which will permit aforward and backward movement of one half of the bolster with referenceto its other half but which will prevent any rotary movement of one halfrelatively to the other, a brake reach through which the coupling pinpasses, the brake reach being adapted to operate means to apply thebrakes, and means to detachably secure the upper and lower halves of thebolster together.

8. In a wagon brake, a coupling pin, a divided bolster, one half of thebolster having a slot therein, a reach secured to the upper half of thebolster, means which will permit a forward and backward movement of onehalf of the bolster with reference to its other half but which willprevent any rotary movement of one half relatively to the other, a brakereach through which the coupling pin passes, the brake reach beingadapted to operate means to apply the brakes, a bar secured to one halfof the bolster and an arm pivoted to the other half of the bolster, thearm having notches therein which are adapted to engage the bar, andmeans to hold the notches on the pivoted arm in looking engagement withthe bar.

9. In a wagon brake, a coupling pin, a divided bolster, one half of thebolster having a slot therein, a main reach secured to the upper half ofthe bolster, means which will permit a forward and backward movement ofone half of the bolster with reference to its other half but which willprevent any rotary movement of one half relatively to the other, a brakereach through which the coupling pin passes, the brake reach beingadapted to operate means to apply the brakes, a second main reachdisposed between the first reach, and a wear plate secured to the brakereach, the wear plate having an end disposed between a bolster memberand the last named reach.

10. In a wagon brake, a coupling pin, a divided front bolster, onehalf'of the bolster having a slot therein, a reach secured to the upperhalf of the bolster, means which will permit the forward and backwardmovement of one half of the bolster with reference to the other half butwhich will prevent any relative rotary movement of one half withreference to its other half, a brake reach through which the couplingpin passes, two arms pivoted to the wagon frame, and a link connectingthe two arms, one arm being secured to the brake reach, the brake armbeing secured to the other arm.

11. In a wagon brake, a coupling pin, a divided front bolster, one halfof the bolster having a slot therein, a reach secured to the upper halfof the bolster, means which will permit a forward and backward movementof one half of the bolster with reference to the other half but whichwill prevent any relative rotary movement of one half with reference toits other half, a brake reach through which the couplin pin passes, twoarms pivoted to the wagon frame, a link connecting the two arms, one armbeing secured to the brake reach, the brake arm being secured to theother arm, and means to prevent the relative movement of the reaches.

12. In a wagon brake, a coupling pin, a divided front bolster, one halfof the bolster having a slot therein, a reach secured to the upper halfof the bolster, means which will permit a forward and backward movementof one half of the bolster with reference to the other half but whichwill prevent any relative rotary movement of one half with reference toits other half, a brake reach through which the coupling pin passes, two

arms pivoted to the wagon frame, a link connecting the two arms, one armbeing secured to the brake reach, the brake arm being secured to theother arm, and means to detachably secure the upper and lower halves ofthe front bolster together.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EBEN G. DOLAND.

lVitnesses 2i VERNE IV. ELLISON, GEORGE E. S'roKns.

